fix: add missing type definitions (#278)

* fix: @todo docs improvements

* fix: add ClientInfo to Client typings

* add ClientInfoPhone

* fix: set getBatteryStatus as async

* add ClientInfo comment

Co-authored-by: Pedro S. Lopez <pedroslopez@me.com>

index.d.ts

@@ -7,6 +7,12 @@ declare namespace WAWebJS {
   export class Client extends EventEmitter {
     constructor(options: ClientOptions)
     
+    /** 
+     * Current connection information 
+     * @todo add this in the official docs 
+     */
+    public info: ClientInfo
+
     /**Accepts an invitation to join a group */
     acceptInvite(inviteCode: string): Promise<void>
 
@@ -49,19 +55,13 @@ declare namespace WAWebJS {
     /** Gets the current connection state for the client */
     getState(): Promise<WAState>
 
-    /** 
+    /** Returns the version of WhatsApp Web currently being run */
-     * Returns the version of WhatsApp Web currently being run
-     * @todo fix the return value in the official docs
-     */
     getWWebVersion(): Promise<string>
 
     /** Sets up events and requirements, kicks off authentication request */
     initialize(): Promise<void>
 
-    /** 
+    /** Check if a given ID is registered in whatsapp */
-     * Check if a given ID is registered in whatsapp
-     * @todo add contactId param in the official docs
-     */
     isRegisteredUser(contactId: string): Promise<boolean>
 
     /**
@@ -92,10 +92,7 @@ declare namespace WAWebJS {
     /** Changes and returns the archive state of the Chat */
     unarchiveChat(chatId: string): Promise<boolean>
 
-    /**
+    /** Unmutes the Chat */
-     * Unmutes the Chat 
-     * @todo add chatId param in the official docs
-     */
     unmuteChat(chatId: string): Promise<void>
 
     /** Generic event */
@@ -197,6 +194,35 @@ declare namespace WAWebJS {
     on(event: 'ready', listener: () => void): this
   }
 
+  /** Current connection information */
+  export interface ClientInfo {
+    /** Current user ID */
+    me: ContactId
+    /** Information about the phone this client is connected to */
+    phone: ClientInfoPhone
+    /** Platform the phone is running on */
+    platform: string
+    /** Name configured to be shown in push notifications */
+    pushname: string
+
+    /** Get current battery percentage and charging status for the attached device */
+    getBatteryStatus: () => Promise<BatteryInfo>
+  }
+
+  /** Information about the phone this client is connected to */
+  export interface ClientInfoPhone {
+    /** WhatsApp Version running on the phone */
+    wa_version: string
+    /** OS Version running on the phone (iOS or Android version) */
+    os_version: string
+    /** Device manufacturer */
+    device_manufacturer: string
+    /** Device model */
+    device_model: string
+    /** OS build number */
+    os_build_number: string
+  }
+
   /**
    * Options for initializing the whatsapp client
    * @todo add these in the official docs

src/Client.js

@@ -15,6 +15,7 @@ const { ClientInfo, Message, MessageMedia, Contact, Location, GroupNotification
 /**
  * Starting point for interacting with the WhatsApp Web API
  * @extends {EventEmitter}
+ * @param {object} options
  * @fires Client#qr
  * @fires Client#authenticated
  * @fires Client#auth_failure
@@ -370,7 +371,7 @@ class Client extends EventEmitter {
 
     /**
      * Returns the version of WhatsApp Web currently being run
-     * @returns Promise<string>
+     * @returns {Promise<string>}
      */
     async getWWebVersion() {
         return await this.pupPage.evaluate(() => {
@@ -610,6 +611,7 @@ class Client extends EventEmitter {
 
     /**
      * Check if a given ID is registered in whatsapp
+     * @param {string} id the whatsapp user's ID
      * @returns {Promise<Boolean>}
      */
     async isRegisteredUser(id) {